コントラスト感度と空間ナビゲーション

抄録

Contrast sensitivity (CS) testing provides useful information about visual impairment to low vision practitioners. CS testing has been indicated to be able to predict patients' ability to perform real-world tasks such as space navigation. In this short article, we focus on stair descent, an important component of the space navigation. Is the CS for walking downstairs similar to that for detecting stairs? One of our recent findings showed that the CS for the walking speed of stair descent was higher than the CS for detecting stairs. This result suggests that people with reduced CS may have difficulty in climbing down stairs, even though they are able to detect the stairs.